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TonyDuell · 7th Jul 2016, 12:02 am

Does it read exactly 0 if you short-circuit the test leads in voltage mode?

What happens if you measre a different voltage battery? Is the 50mV an offset (so that it reads 50mV more in one direction than the other no matter what the input voltage is), or a different sensitivity for the 2 polarities (so that, for example, if a 1.5V battery gives a 50mV error, then a 3V one would give a 100mV error.)

7th Jul 2016, 12:02 am	#2
TonyDuell Dekatron Join Date: Jun 2015 Location: Biggin Hill, London, UK. Posts: 5,222	Re: Reading anomaly on old Philips DMM. Does it read exactly 0 if you short-circuit the test leads in voltage mode? What happens if you measre a different voltage battery? Is the 50mV an offset (so that it reads 50mV more in one direction than the other no matter what the input voltage is), or a different sensitivity for the 2 polarities (so that, for example, if a 1.5V battery gives a 50mV error, then a 3V one would give a 100mV error.)